{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "patch vulnerability", "arguments": ["releaser", "supported platform", "vulnerable system", "vulnerable system version", "patch", "common vulnerabilities and exposures", "patch number", "vulnerability", "issues addressed", "time"]}], "input": "Open source server platform Samba has issued patches for two critical vulnerabilities that could be used to launch denial - of - service attacks or allow anyone to change user and administrator passwords ."}
{"patch vulnerability": [{"releaser": "Open source server platform Samba", "supported platform": "NAN", "vulnerable system": "NAN", "vulnerable system version": "NAN", "patch": "patches", "common vulnerabilities and exposures": "NAN", "patch number": "NAN", "vulnerability": "two critical vulnerabilities", "issues addressed": ["denial - of - service attacks", "allow anyone to change user and administrator passwords"], "time": "NAN"}]}